| 配筋钢管混凝土柱抗火性能试验研究 |
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| 引用本文： | 吴晓莉,韩金生,程文瀼.配筋钢管混凝土柱抗火性能试验研究[J].东南大学学报(自然科学版),2009(Z2). |
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| 作者姓名： | 吴晓莉 韩金生 程文瀼 |
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| 作者单位： | 东南大学土木工程学院;山东科技大学土木建筑学院; |
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| 摘 要： | 为了提高钢管混凝土柱的抗火性能,在钢管混凝土柱中配置纵向钢筋和箍筋.对3根配筋钢管混凝土柱和1根钢管混凝土柱在恒定轴压荷载、两端简支条件下进行了火灾行为的试验研究.研究了配筋钢管混凝土柱的火灾反应、变形和破坏过程,测量了钢管混凝土柱截面温度场,并分析了钢管和配筋对钢管混凝土柱抗火性能的影响.试验表明,试验柱的破坏形态都是弯曲型,高温下配筋钢管混凝土的钢管退出工作后,由内部的钢筋混凝土圆柱承受荷载,其耐火极限比不配筋的钢管混凝土柱大得多,并且纵向钢筋数量多的配筋钢管混凝土柱,其耐火极限比配筋少的要大.对试验结果分析表明,耐火极限的计算值和试验值符合较好.
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| 关 键 词： | 配筋钢管混凝土柱 抗火性能 耐火极限 |
Test research on fire resistance performance of bar-reinforced concrete filled steel tubular columns |
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| Wu Xiaoli Han Jinsheng Cheng Wenrang.Test research on fire resistance performance of bar-reinforced concrete filled steel tubular columns[J].Journal of Southeast University(Natural Science Edition),2009(Z2). |
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| Authors: | Wu Xiaoli Han Jinsheng Cheng Wenrang |
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| Institution: | Wu Xiaoli1 Han Jinsheng2 Cheng Wenrang1(1 School of Civil Engineering,Southeast University,Nanjing 210096,China) (2 College of Civil Engineering , Architecture,Sh,ong University of Science , Technology,Sh,ong 266510,China) |
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| Abstract: | In order to improve the fire resistance performance,the longitudinal reinforcing bars and stirrups are placed inside the concrete filled steel tubular columns.A test research is performed for three bar-reinforced concrete filled steel tubular columns and one steel tubular column,which are all simple supported on both ends and under the constant axial pressure load.The responses,deformation and failure process of the bar-reinforced concrete filled steel tubular columns under fire are investigated.The section... |
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| Keywords: | bar-reinforced concrete filled steel tubular columns fire resistance performance ultimate fire resistance value |
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